The 54FCT573TDB from Renesas Electronics America Inc is a D-type transparent latch with 1 channel, 8:8 configuration and tri-state output, in a 20-CDIP package.
The 54FCT573TLB from Renesas Electronics America Inc is a D-type transparent latch Integrated Circuit with 1 channel, 8:8 configuration and tri-state outputs, in a 20-LCC (8.89x8.89) package.